Google Maps has added subway/metro stations and detailed building outlines to some metropolitan areas.

The subway locations, visible in both map and satellite views, mark out metro stops on your map. The building outlines, which now show up in map view, give a nice added context to the map view by providing a simplified 3D representation of buildings. Both are relatively minor updates, but it's nice to see Google Maps continue to grow in a positive direction. It'd be nice, eventually, to see Maps integrate with previously-mentioned Google Transit. — Adam Pash